package model;

public class Test {

	public static void main(String[] args) {
		Dog dog = new Dog();
		System.out.print("Con chó sủa: " + dog.getSound() + "\n");
		
		Duck duck = new Duck();
		System.out.print("Con vịt kêu: " + duck.getSound() + "\n");
		
		Cat cat = new Cat();
		System.out.print("Con mèo kêu: " + cat.getSound() + "\n");
	}

}
